NTSB got cause of 35W bridge collapse wrong, lawyer says
|Photo by mtellin|
The attorneys hired experts to analyze the collapse and they found another cause for the deadly collapse on Aug. 1, 2007.
Attorney Chris Messerly says the experts told survivors and families of victims Tuesday night the "initiating event" wasn't the fracture of a key gusset plate in the bridge, but the failure of a horizontal beam called a chord.The failed chord then led to the gusset plate fail.
He says the experts concluded the chord buckled because of heat stresses on the bridge Aug. 1, 2007, the weight of construction materials on it, and frozen roller bearings that prevented the bridge from expanding.